本来是一件很简单的事情。 cvsup -gL 2 -h cvsup.freebsd.org /usr/share/examples/cvsup/ports-supfilecd /usr/ports/lang/php5(或者用：/usr/ports/www/mod_php5)make install clean 但是结果却发现pivot无法运行，报一个错误，说是什么函数找不到。google
本来是一件很简单的事情。
cvsup -gL 2 -h cvsup.freebsd.org /usr/share/examples/cvsup/ports-supfilecd /usr/ports/lang/php5(或者用：/usr/ports/www/mod_php5)make install clean
但是结果却发现pivot无法运行，报一个错误，说是什么函数找不到。google了一下才知道，这个函数在一个叫做pcre（Perl Compatible Regular Expressions）的库提供的。Windows版下的PHP5安装程序中已经默认包含了，但是用ports安装的默认选项是没有包括它的。只好查资 料，反复地把PHP5装了卸，卸了装，但是总是不对，不论是装php5还是装mod_php5（后来看了mod_php5的Makefile，发现它也是 依赖php5的安装的）。也试过用一些选项重新编译Apache几次，始终不管用。这个pcre似乎既不在PHP5里，也不在Apache里。
事实证明它的确不包含在那二者中，而是一个单独的安装。-_-|||
cd /usr/ports/devel/pcremake install cleancd /usr/ports/lang/php5vi Makefile(在其中的CONFIGURE_ARGS=一项末尾增加--with-pcre-regex后保存退出)make install clean
即可使PHP5增加pcre支持。
BTW：安装成功后，pivot仍然出现登录后任何操作都需要重登录的问题，经查，是因为文件权限问题，chmod一下即可。
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